I have a 48 inch JVC rear projection TV that is about 6 1/2 years old. It has been a very good set. However, about a year ago I noticed that it has "imprinted" a cable channel logo in the top corner along with a grid line image from the top to the bottom of the screen. Is there any way of getting rid of the image such as replacing a bulb(s).
thanks
Fred

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Sounds like the CRT tubes are going out which is fairly common on Sony. Inside the back of the TV there are 6 knobs - 2 for each color...one is for focus - dont touch - the other for brightness...turn down the brightness just a hair untill the lines go away.

This television set, as well as most rear-projections, is prone to convergence driver problems. There are two large chips (STK392-110's) in the TV that need to be replaced, as well as some resistors that are likely damaged as well. Any competent TV repair shops should be able to repair this TV for 200-300 dollars. It is important to note that if the back of the TV is taken off without the proper prep., the Digital input (DVI) will be disabled permanently.

RICKY-SOUNDS LIKE THE USUAL CONVERGENCE IC FAILURE.TRY LOOKING IN W/BACK OFF TV AND YOU'LL SEE COUPLE OF STK392-??? IC CHIPS,LOCATED ON A BIG METAL HEAT SINK.RETRIEVE THE EXACT PART # AND YOU CAN ORDER THEM AND INSTALL THEM YOURSELF IF YOU ARE GOOD AT SOLDERING ELECTRONIC PARTS,IF NOT BEST BET IS CALL AN EXPERIENCED JVC TECH.JOE TV

When you say no picture, is there any sound or noise coming from rear of set when you try to turn on. If so then you have no high voltage and maybe a cap in the HV line that is bad. If no sound at all, then maybe a fuse or open resistor in powersupply.